File: | src/gnu/usr.bin/binutils-2.17/bfd/bfd.c |
Warning: | line 968, column 7 Access to field 'format' results in a dereference of a null pointer (loaded from variable 'abfd') |
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1 | /* Generic BFD library interface and support routines. | |||
2 | Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, | |||
3 | 2000, 2001, 2002, 2003, 2004, 2005, 2006 | |||
4 | Free Software Foundation, Inc. | |||
5 | Written by Cygnus Support. | |||
6 | ||||
7 | This file is part of BFD, the Binary File Descriptor library. | |||
8 | ||||
9 | This program is free software; you can redistribute it and/or modify | |||
10 | it under the terms of the GNU General Public License as published by | |||
11 | the Free Software Foundation; either version 2 of the License, or | |||
12 | (at your option) any later version. | |||
13 | ||||
14 | This program is distributed in the hope that it will be useful, | |||
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |||
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |||
17 | GNU General Public License for more details. | |||
18 | ||||
19 | You should have received a copy of the GNU General Public License | |||
20 | along with this program; if not, write to the Free Software | |||
21 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ | |||
22 | ||||
23 | /* | |||
24 | SECTION | |||
25 | <<typedef bfd>> | |||
26 | ||||
27 | A BFD has type <<bfd>>; objects of this type are the | |||
28 | cornerstone of any application using BFD. Using BFD | |||
29 | consists of making references though the BFD and to data in the BFD. | |||
30 | ||||
31 | Here is the structure that defines the type <<bfd>>. It | |||
32 | contains the major data about the file and pointers | |||
33 | to the rest of the data. | |||
34 | ||||
35 | CODE_FRAGMENT | |||
36 | . | |||
37 | .struct bfd | |||
38 | .{ | |||
39 | . {* A unique identifier of the BFD *} | |||
40 | . unsigned int id; | |||
41 | . | |||
42 | . {* The filename the application opened the BFD with. *} | |||
43 | . const char *filename; | |||
44 | . | |||
45 | . {* A pointer to the target jump table. *} | |||
46 | . const struct bfd_target *xvec; | |||
47 | . | |||
48 | . {* The IOSTREAM, and corresponding IO vector that provide access | |||
49 | . to the file backing the BFD. *} | |||
50 | . void *iostream; | |||
51 | . const struct bfd_iovec *iovec; | |||
52 | . | |||
53 | . {* Is the file descriptor being cached? That is, can it be closed as | |||
54 | . needed, and re-opened when accessed later? *} | |||
55 | . bfd_boolean cacheable; | |||
56 | . | |||
57 | . {* Marks whether there was a default target specified when the | |||
58 | . BFD was opened. This is used to select which matching algorithm | |||
59 | . to use to choose the back end. *} | |||
60 | . bfd_boolean target_defaulted; | |||
61 | . | |||
62 | . {* The caching routines use these to maintain a | |||
63 | . least-recently-used list of BFDs. *} | |||
64 | . struct bfd *lru_prev, *lru_next; | |||
65 | . | |||
66 | . {* When a file is closed by the caching routines, BFD retains | |||
67 | . state information on the file here... *} | |||
68 | . ufile_ptr where; | |||
69 | . | |||
70 | . {* ... and here: (``once'' means at least once). *} | |||
71 | . bfd_boolean opened_once; | |||
72 | . | |||
73 | . {* Set if we have a locally maintained mtime value, rather than | |||
74 | . getting it from the file each time. *} | |||
75 | . bfd_boolean mtime_set; | |||
76 | . | |||
77 | . {* File modified time, if mtime_set is TRUE. *} | |||
78 | . time_t mtime; | |||
79 | . | |||
80 | . {* Reserved for an unimplemented file locking extension. *} | |||
81 | . int ifd; | |||
82 | . | |||
83 | . {* The format which belongs to the BFD. (object, core, etc.) *} | |||
84 | . bfd_format format; | |||
85 | . | |||
86 | . {* The direction with which the BFD was opened. *} | |||
87 | . enum bfd_direction | |||
88 | . { | |||
89 | . no_direction = 0, | |||
90 | . read_direction = 1, | |||
91 | . write_direction = 2, | |||
92 | . both_direction = 3 | |||
93 | . } | |||
94 | . direction; | |||
95 | . | |||
96 | . {* Format_specific flags. *} | |||
97 | . flagword flags; | |||
98 | . | |||
99 | . {* Currently my_archive is tested before adding origin to | |||
100 | . anything. I believe that this can become always an add of | |||
101 | . origin, with origin set to 0 for non archive files. *} | |||
102 | . ufile_ptr origin; | |||
103 | . | |||
104 | . {* Remember when output has begun, to stop strange things | |||
105 | . from happening. *} | |||
106 | . bfd_boolean output_has_begun; | |||
107 | . | |||
108 | . {* A hash table for section names. *} | |||
109 | . struct bfd_hash_table section_htab; | |||
110 | . | |||
111 | . {* Pointer to linked list of sections. *} | |||
112 | . struct bfd_section *sections; | |||
113 | . | |||
114 | . {* The last section on the section list. *} | |||
115 | . struct bfd_section *section_last; | |||
116 | . | |||
117 | . {* The number of sections. *} | |||
118 | . unsigned int section_count; | |||
119 | . | |||
120 | . {* Stuff only useful for object files: | |||
121 | . The start address. *} | |||
122 | . bfd_vma start_address; | |||
123 | . | |||
124 | . {* Used for input and output. *} | |||
125 | . unsigned int symcount; | |||
126 | . | |||
127 | . {* Symbol table for output BFD (with symcount entries). *} | |||
128 | . struct bfd_symbol **outsymbols; | |||
129 | . | |||
130 | . {* Used for slurped dynamic symbol tables. *} | |||
131 | . unsigned int dynsymcount; | |||
132 | . | |||
133 | . {* Pointer to structure which contains architecture information. *} | |||
134 | . const struct bfd_arch_info *arch_info; | |||
135 | . | |||
136 | . {* Flag set if symbols from this BFD should not be exported. *} | |||
137 | . bfd_boolean no_export; | |||
138 | . | |||
139 | . {* Stuff only useful for archives. *} | |||
140 | . void *arelt_data; | |||
141 | . struct bfd *my_archive; {* The containing archive BFD. *} | |||
142 | . struct bfd *next; {* The next BFD in the archive. *} | |||
143 | . struct bfd *archive_head; {* The first BFD in the archive. *} | |||
144 | . bfd_boolean has_armap; | |||
145 | . | |||
146 | . {* A chain of BFD structures involved in a link. *} | |||
147 | . struct bfd *link_next; | |||
148 | . | |||
149 | . {* A field used by _bfd_generic_link_add_archive_symbols. This will | |||
150 | . be used only for archive elements. *} | |||
151 | . int archive_pass; | |||
152 | . | |||
153 | . {* Used by the back end to hold private data. *} | |||
154 | . union | |||
155 | . { | |||
156 | . struct aout_data_struct *aout_data; | |||
157 | . struct artdata *aout_ar_data; | |||
158 | . struct _oasys_data *oasys_obj_data; | |||
159 | . struct _oasys_ar_data *oasys_ar_data; | |||
160 | . struct coff_tdata *coff_obj_data; | |||
161 | . struct pe_tdata *pe_obj_data; | |||
162 | . struct xcoff_tdata *xcoff_obj_data; | |||
163 | . struct ecoff_tdata *ecoff_obj_data; | |||
164 | . struct ieee_data_struct *ieee_data; | |||
165 | . struct ieee_ar_data_struct *ieee_ar_data; | |||
166 | . struct srec_data_struct *srec_data; | |||
167 | . struct ihex_data_struct *ihex_data; | |||
168 | . struct tekhex_data_struct *tekhex_data; | |||
169 | . struct elf_obj_tdata *elf_obj_data; | |||
170 | . struct nlm_obj_tdata *nlm_obj_data; | |||
171 | . struct bout_data_struct *bout_data; | |||
172 | . struct mmo_data_struct *mmo_data; | |||
173 | . struct sun_core_struct *sun_core_data; | |||
174 | . struct sco5_core_struct *sco5_core_data; | |||
175 | . struct trad_core_struct *trad_core_data; | |||
176 | . struct som_data_struct *som_data; | |||
177 | . struct hpux_core_struct *hpux_core_data; | |||
178 | . struct hppabsd_core_struct *hppabsd_core_data; | |||
179 | . struct sgi_core_struct *sgi_core_data; | |||
180 | . struct lynx_core_struct *lynx_core_data; | |||
181 | . struct osf_core_struct *osf_core_data; | |||
182 | . struct cisco_core_struct *cisco_core_data; | |||
183 | . struct versados_data_struct *versados_data; | |||
184 | . struct netbsd_core_struct *netbsd_core_data; | |||
185 | . struct mach_o_data_struct *mach_o_data; | |||
186 | . struct mach_o_fat_data_struct *mach_o_fat_data; | |||
187 | . struct bfd_pef_data_struct *pef_data; | |||
188 | . struct bfd_pef_xlib_data_struct *pef_xlib_data; | |||
189 | . struct bfd_sym_data_struct *sym_data; | |||
190 | . void *any; | |||
191 | . } | |||
192 | . tdata; | |||
193 | . | |||
194 | . {* Used by the application to hold private data. *} | |||
195 | . void *usrdata; | |||
196 | . | |||
197 | . {* Where all the allocated stuff under this BFD goes. This is a | |||
198 | . struct objalloc *, but we use void * to avoid requiring the inclusion | |||
199 | . of objalloc.h. *} | |||
200 | . void *memory; | |||
201 | .}; | |||
202 | . | |||
203 | */ | |||
204 | ||||
205 | #include "bfd.h" | |||
206 | #include "bfdver.h" | |||
207 | #include "sysdep.h" | |||
208 | #include <stdarg.h> | |||
209 | #include "libiberty.h" | |||
210 | #include "safe-ctype.h" | |||
211 | #include "bfdlink.h" | |||
212 | #include "libbfd.h" | |||
213 | #include "coff/internal.h" | |||
214 | #include "coff/sym.h" | |||
215 | #include "libcoff.h" | |||
216 | #include "libecoff.h" | |||
217 | #undef obj_symbols | |||
218 | #include "elf-bfd.h" | |||
219 | ||||
220 | #ifndef EXIT_FAILURE1 | |||
221 | #define EXIT_FAILURE1 1 | |||
222 | #endif | |||
223 | ||||
224 | ||||
225 | /* provide storage for subsystem, stack and heap data which may have been | |||
226 | passed in on the command line. Ld puts this data into a bfd_link_info | |||
227 | struct which ultimately gets passed in to the bfd. When it arrives, copy | |||
228 | it to the following struct so that the data will be available in coffcode.h | |||
229 | where it is needed. The typedef's used are defined in bfd.h */ | |||
230 | ||||
231 | /* | |||
232 | SECTION | |||
233 | Error reporting | |||
234 | ||||
235 | Most BFD functions return nonzero on success (check their | |||
236 | individual documentation for precise semantics). On an error, | |||
237 | they call <<bfd_set_error>> to set an error condition that callers | |||
238 | can check by calling <<bfd_get_error>>. | |||
239 | If that returns <<bfd_error_system_call>>, then check | |||
240 | <<errno>>. | |||
241 | ||||
242 | The easiest way to report a BFD error to the user is to | |||
243 | use <<bfd_perror>>. | |||
244 | ||||
245 | SUBSECTION | |||
246 | Type <<bfd_error_type>> | |||
247 | ||||
248 | The values returned by <<bfd_get_error>> are defined by the | |||
249 | enumerated type <<bfd_error_type>>. | |||
250 | ||||
251 | CODE_FRAGMENT | |||
252 | . | |||
253 | .typedef enum bfd_error | |||
254 | .{ | |||
255 | . bfd_error_no_error = 0, | |||
256 | . bfd_error_system_call, | |||
257 | . bfd_error_invalid_target, | |||
258 | . bfd_error_wrong_format, | |||
259 | . bfd_error_wrong_object_format, | |||
260 | . bfd_error_invalid_operation, | |||
261 | . bfd_error_no_memory, | |||
262 | . bfd_error_no_symbols, | |||
263 | . bfd_error_no_armap, | |||
264 | . bfd_error_no_more_archived_files, | |||
265 | . bfd_error_malformed_archive, | |||
266 | . bfd_error_file_not_recognized, | |||
267 | . bfd_error_file_ambiguously_recognized, | |||
268 | . bfd_error_no_contents, | |||
269 | . bfd_error_nonrepresentable_section, | |||
270 | . bfd_error_no_debug_section, | |||
271 | . bfd_error_bad_value, | |||
272 | . bfd_error_file_truncated, | |||
273 | . bfd_error_file_too_big, | |||
274 | . bfd_error_invalid_error_code | |||
275 | .} | |||
276 | .bfd_error_type; | |||
277 | . | |||
278 | */ | |||
279 | ||||
280 | static bfd_error_type bfd_error = bfd_error_no_error; | |||
281 | ||||
282 | const char *const bfd_errmsgs[] = | |||
283 | { | |||
284 | N_("No error")("No error"), | |||
285 | N_("System call error")("System call error"), | |||
286 | N_("Invalid bfd target")("Invalid bfd target"), | |||
287 | N_("File in wrong format")("File in wrong format"), | |||
288 | N_("Archive object file in wrong format")("Archive object file in wrong format"), | |||
289 | N_("Invalid operation")("Invalid operation"), | |||
290 | N_("Memory exhausted")("Memory exhausted"), | |||
291 | N_("No symbols")("No symbols"), | |||
292 | N_("Archive has no index; run ranlib to add one")("Archive has no index; run ranlib to add one"), | |||
293 | N_("No more archived files")("No more archived files"), | |||
294 | N_("Malformed archive")("Malformed archive"), | |||
295 | N_("File format not recognized")("File format not recognized"), | |||
296 | N_("File format is ambiguous")("File format is ambiguous"), | |||
297 | N_("Section has no contents")("Section has no contents"), | |||
298 | N_("Nonrepresentable section on output")("Nonrepresentable section on output"), | |||
299 | N_("Symbol needs debug section which does not exist")("Symbol needs debug section which does not exist"), | |||
300 | N_("Bad value")("Bad value"), | |||
301 | N_("File truncated")("File truncated"), | |||
302 | N_("File too big")("File too big"), | |||
303 | N_("#<Invalid error code>")("#<Invalid error code>") | |||
304 | }; | |||
305 | ||||
306 | /* | |||
307 | FUNCTION | |||
308 | bfd_get_error | |||
309 | ||||
310 | SYNOPSIS | |||
311 | bfd_error_type bfd_get_error (void); | |||
312 | ||||
313 | DESCRIPTION | |||
314 | Return the current BFD error condition. | |||
315 | */ | |||
316 | ||||
317 | bfd_error_type | |||
318 | bfd_get_error (void) | |||
319 | { | |||
320 | return bfd_error; | |||
321 | } | |||
322 | ||||
323 | /* | |||
324 | FUNCTION | |||
325 | bfd_set_error | |||
326 | ||||
327 | SYNOPSIS | |||
328 | void bfd_set_error (bfd_error_type error_tag); | |||
329 | ||||
330 | DESCRIPTION | |||
331 | Set the BFD error condition to be @var{error_tag}. | |||
332 | */ | |||
333 | ||||
334 | void | |||
335 | bfd_set_error (bfd_error_type error_tag) | |||
336 | { | |||
337 | bfd_error = error_tag; | |||
338 | } | |||
339 | ||||
340 | /* | |||
341 | FUNCTION | |||
342 | bfd_errmsg | |||
343 | ||||
344 | SYNOPSIS | |||
345 | const char *bfd_errmsg (bfd_error_type error_tag); | |||
346 | ||||
347 | DESCRIPTION | |||
348 | Return a string describing the error @var{error_tag}, or | |||
349 | the system error if @var{error_tag} is <<bfd_error_system_call>>. | |||
350 | */ | |||
351 | ||||
352 | const char * | |||
353 | bfd_errmsg (bfd_error_type error_tag) | |||
354 | { | |||
355 | #ifndef errno(*__errno()) | |||
356 | extern int errno(*__errno()); | |||
357 | #endif | |||
358 | if (error_tag == bfd_error_system_call) | |||
359 | return xstrerror (errno(*__errno())); | |||
360 | ||||
361 | if (error_tag > bfd_error_invalid_error_code) | |||
362 | error_tag = bfd_error_invalid_error_code; /* sanity check */ | |||
363 | ||||
364 | return _(bfd_errmsgs [error_tag])(bfd_errmsgs [error_tag]); | |||
365 | } | |||
366 | ||||
367 | /* | |||
368 | FUNCTION | |||
369 | bfd_perror | |||
370 | ||||
371 | SYNOPSIS | |||
372 | void bfd_perror (const char *message); | |||
373 | ||||
374 | DESCRIPTION | |||
375 | Print to the standard error stream a string describing the | |||
376 | last BFD error that occurred, or the last system error if | |||
377 | the last BFD error was a system call failure. If @var{message} | |||
378 | is non-NULL and non-empty, the error string printed is preceded | |||
379 | by @var{message}, a colon, and a space. It is followed by a newline. | |||
380 | */ | |||
381 | ||||
382 | void | |||
383 | bfd_perror (const char *message) | |||
384 | { | |||
385 | if (bfd_get_error () == bfd_error_system_call) | |||
386 | /* Must be a system error then. */ | |||
387 | perror ((char *) message); | |||
388 | else | |||
389 | { | |||
390 | if (message == NULL((void*)0) || *message == '\0') | |||
391 | fprintf (stderr(&__sF[2]), "%s\n", bfd_errmsg (bfd_get_error ())); | |||
392 | else | |||
393 | fprintf (stderr(&__sF[2]), "%s: %s\n", message, bfd_errmsg (bfd_get_error ())); | |||
394 | } | |||
395 | } | |||
396 | ||||
397 | /* | |||
398 | SUBSECTION | |||
399 | BFD error handler | |||
400 | ||||
401 | Some BFD functions want to print messages describing the | |||
402 | problem. They call a BFD error handler function. This | |||
403 | function may be overridden by the program. | |||
404 | ||||
405 | The BFD error handler acts like printf. | |||
406 | ||||
407 | CODE_FRAGMENT | |||
408 | . | |||
409 | .typedef void (*bfd_error_handler_type) (const char *, ...); | |||
410 | . | |||
411 | */ | |||
412 | ||||
413 | /* The program name used when printing BFD error messages. */ | |||
414 | ||||
415 | static const char *_bfd_error_program_name; | |||
416 | ||||
417 | /* This is the default routine to handle BFD error messages. | |||
418 | Like fprintf (stderr, ...), but also handles some extra format specifiers. | |||
419 | ||||
420 | %A section name from section. For group components, print group name too. | |||
421 | %B file name from bfd. For archive components, prints archive too. | |||
422 | */ | |||
423 | ||||
424 | void | |||
425 | _bfd_default_error_handler (const char *fmt, ...) | |||
426 | { | |||
427 | va_list ap; | |||
428 | char *bufp; | |||
429 | const char *new_fmt, *p; | |||
430 | size_t avail = 1000; | |||
431 | char buf[1000]; | |||
432 | ||||
433 | if (_bfd_error_program_name != NULL((void*)0)) | |||
434 | fprintf (stderr(&__sF[2]), "%s: ", _bfd_error_program_name); | |||
435 | else | |||
436 | fprintf (stderr(&__sF[2]), "BFD: "); | |||
437 | ||||
438 | va_start (ap, fmt)__builtin_va_start(ap, fmt); | |||
439 | new_fmt = fmt; | |||
440 | bufp = buf; | |||
441 | ||||
442 | /* Reserve enough space for the existing format string. */ | |||
443 | avail -= strlen (fmt) + 1; | |||
444 | if (avail > 1000) | |||
445 | _exit (EXIT_FAILURE1); | |||
446 | ||||
447 | p = fmt; | |||
448 | while (1) | |||
449 | { | |||
450 | char *q; | |||
451 | size_t len, extra, trim; | |||
452 | ||||
453 | p = strchr (p, '%'); | |||
454 | if (p == NULL((void*)0) || p[1] == '\0') | |||
455 | { | |||
456 | if (new_fmt == buf) | |||
457 | { | |||
458 | len = strlen (fmt); | |||
459 | memcpy (bufp, fmt, len + 1); | |||
460 | } | |||
461 | break; | |||
462 | } | |||
463 | ||||
464 | if (p[1] == 'A' || p[1] == 'B') | |||
465 | { | |||
466 | len = p - fmt; | |||
467 | memcpy (bufp, fmt, len); | |||
468 | bufp += len; | |||
469 | fmt = p + 2; | |||
470 | new_fmt = buf; | |||
471 | ||||
472 | /* If we run out of space, tough, you lose your ridiculously | |||
473 | long file or section name. It's not safe to try to alloc | |||
474 | memory here; We might be printing an out of memory message. */ | |||
475 | if (avail == 0) | |||
476 | { | |||
477 | *bufp++ = '*'; | |||
478 | *bufp++ = '*'; | |||
479 | *bufp = '\0'; | |||
480 | } | |||
481 | else | |||
482 | { | |||
483 | if (p[1] == 'B') | |||
484 | { | |||
485 | bfd *abfd = va_arg (ap, bfd *)__builtin_va_arg(ap, bfd *); | |||
486 | if (abfd->my_archive) | |||
487 | snprintf (bufp, avail, "%s(%s)", | |||
488 | abfd->my_archive->filename, abfd->filename); | |||
489 | else | |||
490 | snprintf (bufp, avail, "%s", abfd->filename); | |||
491 | } | |||
492 | else | |||
493 | { | |||
494 | asection *sec = va_arg (ap, asection *)__builtin_va_arg(ap, asection *); | |||
495 | bfd *abfd = sec->owner; | |||
496 | const char *group = NULL((void*)0); | |||
497 | struct coff_comdat_info *ci; | |||
498 | ||||
499 | if (abfd != NULL((void*)0) | |||
500 | && bfd_get_flavour (abfd)((abfd)->xvec->flavour) == bfd_target_elf_flavour | |||
501 | && elf_next_in_group (sec)(((struct bfd_elf_section_data*)(sec)->used_by_bfd)->next_in_group ) != NULL((void*)0) | |||
502 | && (sec->flags & SEC_GROUP0x4000000) == 0) | |||
503 | group = elf_group_name (sec)(((struct bfd_elf_section_data*)(sec)->used_by_bfd)->group .name); | |||
504 | else if (abfd != NULL((void*)0) | |||
505 | && bfd_get_flavour (abfd)((abfd)->xvec->flavour) == bfd_target_coff_flavour | |||
506 | && (ci = bfd_coff_get_comdat_section (sec->owner, | |||
507 | sec)) != NULL((void*)0)) | |||
508 | group = ci->name; | |||
509 | if (group != NULL((void*)0)) | |||
510 | snprintf (bufp, avail, "%s[%s]", sec->name, group); | |||
511 | else | |||
512 | snprintf (bufp, avail, "%s", sec->name); | |||
513 | } | |||
514 | len = strlen (bufp); | |||
515 | avail = avail - len + 2; | |||
516 | ||||
517 | /* We need to replace any '%' we printed by "%%". | |||
518 | First count how many. */ | |||
519 | q = bufp; | |||
520 | bufp += len; | |||
521 | extra = 0; | |||
522 | while ((q = strchr (q, '%')) != NULL((void*)0)) | |||
523 | { | |||
524 | ++q; | |||
525 | ++extra; | |||
526 | } | |||
527 | ||||
528 | /* If there isn't room, trim off the end of the string. */ | |||
529 | q = bufp; | |||
530 | bufp += extra; | |||
531 | if (extra > avail) | |||
532 | { | |||
533 | trim = extra - avail; | |||
534 | bufp -= trim; | |||
535 | do | |||
536 | { | |||
537 | if (*--q == '%') | |||
538 | --extra; | |||
539 | } | |||
540 | while (--trim != 0); | |||
541 | *q = '\0'; | |||
542 | avail = extra; | |||
543 | } | |||
544 | avail -= extra; | |||
545 | ||||
546 | /* Now double all '%' chars, shuffling the string as we go. */ | |||
547 | while (extra != 0) | |||
548 | { | |||
549 | while ((q[extra] = *q) != '%') | |||
550 | --q; | |||
551 | q[--extra] = '%'; | |||
552 | --q; | |||
553 | } | |||
554 | } | |||
555 | } | |||
556 | p = p + 2; | |||
557 | } | |||
558 | ||||
559 | vfprintf (stderr(&__sF[2]), new_fmt, ap); | |||
560 | va_end (ap)__builtin_va_end(ap); | |||
561 | ||||
562 | putc ('\n', stderr)(!__isthreaded ? __sputc('\n', (&__sF[2])) : (putc)('\n', (&__sF[2]))); | |||
563 | } | |||
564 | ||||
565 | /* This is a function pointer to the routine which should handle BFD | |||
566 | error messages. It is called when a BFD routine encounters an | |||
567 | error for which it wants to print a message. Going through a | |||
568 | function pointer permits a program linked against BFD to intercept | |||
569 | the messages and deal with them itself. */ | |||
570 | ||||
571 | bfd_error_handler_type _bfd_error_handler = _bfd_default_error_handler; | |||
572 | ||||
573 | /* | |||
574 | FUNCTION | |||
575 | bfd_set_error_handler | |||
576 | ||||
577 | SYNOPSIS | |||
578 | bfd_error_handler_type bfd_set_error_handler (bfd_error_handler_type); | |||
579 | ||||
580 | DESCRIPTION | |||
581 | Set the BFD error handler function. Returns the previous | |||
582 | function. | |||
583 | */ | |||
584 | ||||
585 | bfd_error_handler_type | |||
586 | bfd_set_error_handler (bfd_error_handler_type pnew) | |||
587 | { | |||
588 | bfd_error_handler_type pold; | |||
589 | ||||
590 | pold = _bfd_error_handler; | |||
591 | _bfd_error_handler = pnew; | |||
592 | return pold; | |||
593 | } | |||
594 | ||||
595 | /* | |||
596 | FUNCTION | |||
597 | bfd_set_error_program_name | |||
598 | ||||
599 | SYNOPSIS | |||
600 | void bfd_set_error_program_name (const char *); | |||
601 | ||||
602 | DESCRIPTION | |||
603 | Set the program name to use when printing a BFD error. This | |||
604 | is printed before the error message followed by a colon and | |||
605 | space. The string must not be changed after it is passed to | |||
606 | this function. | |||
607 | */ | |||
608 | ||||
609 | void | |||
610 | bfd_set_error_program_name (const char *name) | |||
611 | { | |||
612 | _bfd_error_program_name = name; | |||
613 | } | |||
614 | ||||
615 | /* | |||
616 | FUNCTION | |||
617 | bfd_get_error_handler | |||
618 | ||||
619 | SYNOPSIS | |||
620 | bfd_error_handler_type bfd_get_error_handler (void); | |||
621 | ||||
622 | DESCRIPTION | |||
623 | Return the BFD error handler function. | |||
624 | */ | |||
625 | ||||
626 | bfd_error_handler_type | |||
627 | bfd_get_error_handler (void) | |||
628 | { | |||
629 | return _bfd_error_handler; | |||
630 | } | |||
631 | ||||
632 | /* | |||
633 | SECTION | |||
634 | Miscellaneous | |||
635 | ||||
636 | SUBSECTION | |||
637 | Miscellaneous functions | |||
638 | */ | |||
639 | ||||
640 | /* | |||
641 | FUNCTION | |||
642 | bfd_get_reloc_upper_bound | |||
643 | ||||
644 | SYNOPSIS | |||
645 | long bfd_get_reloc_upper_bound (bfd *abfd, asection *sect); | |||
646 | ||||
647 | DESCRIPTION | |||
648 | Return the number of bytes required to store the | |||
649 | relocation information associated with section @var{sect} | |||
650 | attached to bfd @var{abfd}. If an error occurs, return -1. | |||
651 | ||||
652 | */ | |||
653 | ||||
654 | long | |||
655 | bfd_get_reloc_upper_bound (bfd *abfd, sec_ptr asect) | |||
656 | { | |||
657 | if (abfd->format != bfd_object) | |||
658 | { | |||
659 | bfd_set_error (bfd_error_invalid_operation); | |||
660 | return -1; | |||
661 | } | |||
662 | ||||
663 | return BFD_SEND (abfd, _get_reloc_upper_bound, (abfd, asect))((*((abfd)->xvec->_get_reloc_upper_bound)) (abfd, asect )); | |||
664 | } | |||
665 | ||||
666 | /* | |||
667 | FUNCTION | |||
668 | bfd_canonicalize_reloc | |||
669 | ||||
670 | SYNOPSIS | |||
671 | long bfd_canonicalize_reloc | |||
672 | (bfd *abfd, asection *sec, arelent **loc, asymbol **syms); | |||
673 | ||||
674 | DESCRIPTION | |||
675 | Call the back end associated with the open BFD | |||
676 | @var{abfd} and translate the external form of the relocation | |||
677 | information attached to @var{sec} into the internal canonical | |||
678 | form. Place the table into memory at @var{loc}, which has | |||
679 | been preallocated, usually by a call to | |||
680 | <<bfd_get_reloc_upper_bound>>. Returns the number of relocs, or | |||
681 | -1 on error. | |||
682 | ||||
683 | The @var{syms} table is also needed for horrible internal magic | |||
684 | reasons. | |||
685 | ||||
686 | */ | |||
687 | long | |||
688 | bfd_canonicalize_reloc (bfd *abfd, | |||
689 | sec_ptr asect, | |||
690 | arelent **location, | |||
691 | asymbol **symbols) | |||
692 | { | |||
693 | if (abfd->format != bfd_object) | |||
694 | { | |||
695 | bfd_set_error (bfd_error_invalid_operation); | |||
696 | return -1; | |||
697 | } | |||
698 | ||||
699 | return BFD_SEND (abfd, _bfd_canonicalize_reloc,((*((abfd)->xvec->_bfd_canonicalize_reloc)) (abfd, asect , location, symbols)) | |||
700 | (abfd, asect, location, symbols))((*((abfd)->xvec->_bfd_canonicalize_reloc)) (abfd, asect , location, symbols)); | |||
701 | } | |||
702 | ||||
703 | /* | |||
704 | FUNCTION | |||
705 | bfd_set_reloc | |||
706 | ||||
707 | SYNOPSIS | |||
708 | void bfd_set_reloc | |||
709 | (bfd *abfd, asection *sec, arelent **rel, unsigned int count); | |||
710 | ||||
711 | DESCRIPTION | |||
712 | Set the relocation pointer and count within | |||
713 | section @var{sec} to the values @var{rel} and @var{count}. | |||
714 | The argument @var{abfd} is ignored. | |||
715 | ||||
716 | */ | |||
717 | ||||
718 | void | |||
719 | bfd_set_reloc (bfd *ignore_abfd ATTRIBUTE_UNUSED__attribute__ ((__unused__)), | |||
720 | sec_ptr asect, | |||
721 | arelent **location, | |||
722 | unsigned int count) | |||
723 | { | |||
724 | asect->orelocation = location; | |||
725 | asect->reloc_count = count; | |||
726 | } | |||
727 | ||||
728 | /* | |||
729 | FUNCTION | |||
730 | bfd_set_file_flags | |||
731 | ||||
732 | SYNOPSIS | |||
733 | bfd_boolean bfd_set_file_flags (bfd *abfd, flagword flags); | |||
734 | ||||
735 | DESCRIPTION | |||
736 | Set the flag word in the BFD @var{abfd} to the value @var{flags}. | |||
737 | ||||
738 | Possible errors are: | |||
739 | o <<bfd_error_wrong_format>> - The target bfd was not of object format. | |||
740 | o <<bfd_error_invalid_operation>> - The target bfd was open for reading. | |||
741 | o <<bfd_error_invalid_operation>> - | |||
742 | The flag word contained a bit which was not applicable to the | |||
743 | type of file. E.g., an attempt was made to set the <<D_PAGED>> bit | |||
744 | on a BFD format which does not support demand paging. | |||
745 | ||||
746 | */ | |||
747 | ||||
748 | bfd_boolean | |||
749 | bfd_set_file_flags (bfd *abfd, flagword flags) | |||
750 | { | |||
751 | if (abfd->format != bfd_object) | |||
752 | { | |||
753 | bfd_set_error (bfd_error_wrong_format); | |||
754 | return FALSE0; | |||
755 | } | |||
756 | ||||
757 | if (bfd_read_p (abfd)((abfd)->direction == read_direction || (abfd)->direction == both_direction)) | |||
758 | { | |||
759 | bfd_set_error (bfd_error_invalid_operation); | |||
760 | return FALSE0; | |||
761 | } | |||
762 | ||||
763 | bfd_get_file_flags (abfd)((abfd)->flags) = flags; | |||
764 | if ((flags & bfd_applicable_file_flags (abfd)((abfd)->xvec->object_flags)) != flags) | |||
765 | { | |||
766 | bfd_set_error (bfd_error_invalid_operation); | |||
767 | return FALSE0; | |||
768 | } | |||
769 | ||||
770 | return TRUE1; | |||
771 | } | |||
772 | ||||
773 | void | |||
774 | bfd_assert (const char *file, int line) | |||
775 | { | |||
776 | (*_bfd_error_handler) (_("BFD %s assertion fail %s:%d")("BFD %s assertion fail %s:%d"), | |||
777 | BFD_VERSION_STRING"2.17", file, line); | |||
778 | } | |||
779 | ||||
780 | /* A more or less friendly abort message. In libbfd.h abort is | |||
781 | defined to call this function. */ | |||
782 | ||||
783 | void | |||
784 | _bfd_abort (const char *file, int line, const char *fn) | |||
785 | { | |||
786 | if (fn != NULL((void*)0)) | |||
787 | (*_bfd_error_handler) | |||
788 | (_("BFD %s internal error, aborting at %s line %d in %s\n")("BFD %s internal error, aborting at %s line %d in %s\n"), | |||
789 | BFD_VERSION_STRING"2.17", file, line, fn); | |||
790 | else | |||
791 | (*_bfd_error_handler) | |||
792 | (_("BFD %s internal error, aborting at %s line %d\n")("BFD %s internal error, aborting at %s line %d\n"), | |||
793 | BFD_VERSION_STRING"2.17", file, line); | |||
794 | (*_bfd_error_handler) (_("Please report this bug.\n")("Please report this bug.\n")); | |||
795 | _exit (EXIT_FAILURE1); | |||
796 | } | |||
797 | ||||
798 | /* | |||
799 | FUNCTION | |||
800 | bfd_get_arch_size | |||
801 | ||||
802 | SYNOPSIS | |||
803 | int bfd_get_arch_size (bfd *abfd); | |||
804 | ||||
805 | DESCRIPTION | |||
806 | Returns the architecture address size, in bits, as determined | |||
807 | by the object file's format. For ELF, this information is | |||
808 | included in the header. | |||
809 | ||||
810 | RETURNS | |||
811 | Returns the arch size in bits if known, <<-1>> otherwise. | |||
812 | */ | |||
813 | ||||
814 | int | |||
815 | bfd_get_arch_size (bfd *abfd) | |||
816 | { | |||
817 | if (abfd->xvec->flavour == bfd_target_elf_flavour) | |||
818 | return get_elf_backend_data (abfd)((const struct elf_backend_data *) (abfd)->xvec->backend_data )->s->arch_size; | |||
819 | ||||
820 | return -1; | |||
821 | } | |||
822 | ||||
823 | /* | |||
824 | FUNCTION | |||
825 | bfd_get_sign_extend_vma | |||
826 | ||||
827 | SYNOPSIS | |||
828 | int bfd_get_sign_extend_vma (bfd *abfd); | |||
829 | ||||
830 | DESCRIPTION | |||
831 | Indicates if the target architecture "naturally" sign extends | |||
832 | an address. Some architectures implicitly sign extend address | |||
833 | values when they are converted to types larger than the size | |||
834 | of an address. For instance, bfd_get_start_address() will | |||
835 | return an address sign extended to fill a bfd_vma when this is | |||
836 | the case. | |||
837 | ||||
838 | RETURNS | |||
839 | Returns <<1>> if the target architecture is known to sign | |||
840 | extend addresses, <<0>> if the target architecture is known to | |||
841 | not sign extend addresses, and <<-1>> otherwise. | |||
842 | */ | |||
843 | ||||
844 | int | |||
845 | bfd_get_sign_extend_vma (bfd *abfd) | |||
846 | { | |||
847 | char *name; | |||
848 | ||||
849 | if (bfd_get_flavour (abfd)((abfd)->xvec->flavour) == bfd_target_elf_flavour) | |||
850 | return get_elf_backend_data (abfd)((const struct elf_backend_data *) (abfd)->xvec->backend_data )->sign_extend_vma; | |||
851 | ||||
852 | name = bfd_get_target (abfd)((abfd)->xvec->name); | |||
853 | ||||
854 | /* Return a proper value for DJGPP & PE COFF (x86 COFF variants). | |||
855 | This function is required for DWARF2 support, but there is | |||
856 | no place to store this information in the COFF back end. | |||
857 | Should enough other COFF targets add support for DWARF2, | |||
858 | a place will have to be found. Until then, this hack will do. */ | |||
859 | if (strncmp (name, "coff-go32", sizeof ("coff-go32") - 1) == 0 | |||
860 | || strcmp (name, "pe-i386") == 0 | |||
861 | || strcmp (name, "pei-i386") == 0) | |||
862 | return 1; | |||
863 | ||||
864 | bfd_set_error (bfd_error_wrong_format); | |||
865 | return -1; | |||
866 | } | |||
867 | ||||
868 | /* | |||
869 | FUNCTION | |||
870 | bfd_set_start_address | |||
871 | ||||
872 | SYNOPSIS | |||
873 | bfd_boolean bfd_set_start_address (bfd *abfd, bfd_vma vma); | |||
874 | ||||
875 | DESCRIPTION | |||
876 | Make @var{vma} the entry point of output BFD @var{abfd}. | |||
877 | ||||
878 | RETURNS | |||
879 | Returns <<TRUE>> on success, <<FALSE>> otherwise. | |||
880 | */ | |||
881 | ||||
882 | bfd_boolean | |||
883 | bfd_set_start_address (bfd *abfd, bfd_vma vma) | |||
884 | { | |||
885 | abfd->start_address = vma; | |||
886 | return TRUE1; | |||
887 | } | |||
888 | ||||
889 | /* | |||
890 | FUNCTION | |||
891 | bfd_get_gp_size | |||
892 | ||||
893 | SYNOPSIS | |||
894 | unsigned int bfd_get_gp_size (bfd *abfd); | |||
895 | ||||
896 | DESCRIPTION | |||
897 | Return the maximum size of objects to be optimized using the GP | |||
898 | register under MIPS ECOFF. This is typically set by the <<-G>> | |||
899 | argument to the compiler, assembler or linker. | |||
900 | */ | |||
901 | ||||
902 | unsigned int | |||
903 | bfd_get_gp_size (bfd *abfd) | |||
904 | { | |||
905 | if (abfd->format == bfd_object) | |||
906 | { | |||
907 | if (abfd->xvec->flavour == bfd_target_ecoff_flavour) | |||
908 | return ecoff_data (abfd)((abfd)->tdata.ecoff_obj_data)->gp_size; | |||
909 | else if (abfd->xvec->flavour == bfd_target_elf_flavour) | |||
910 | return elf_gp_size (abfd)(((abfd) -> tdata.elf_obj_data) -> gp_size); | |||
911 | } | |||
912 | return 0; | |||
913 | } | |||
914 | ||||
915 | /* | |||
916 | FUNCTION | |||
917 | bfd_set_gp_size | |||
918 | ||||
919 | SYNOPSIS | |||
920 | void bfd_set_gp_size (bfd *abfd, unsigned int i); | |||
921 | ||||
922 | DESCRIPTION | |||
923 | Set the maximum size of objects to be optimized using the GP | |||
924 | register under ECOFF or MIPS ELF. This is typically set by | |||
925 | the <<-G>> argument to the compiler, assembler or linker. | |||
926 | */ | |||
927 | ||||
928 | void | |||
929 | bfd_set_gp_size (bfd *abfd, unsigned int i) | |||
930 | { | |||
931 | /* Don't try to set GP size on an archive or core file! */ | |||
932 | if (abfd->format != bfd_object) | |||
933 | return; | |||
934 | ||||
935 | if (abfd->xvec->flavour == bfd_target_ecoff_flavour) | |||
936 | ecoff_data (abfd)((abfd)->tdata.ecoff_obj_data)->gp_size = i; | |||
937 | else if (abfd->xvec->flavour == bfd_target_elf_flavour) | |||
938 | elf_gp_size (abfd)(((abfd) -> tdata.elf_obj_data) -> gp_size) = i; | |||
939 | } | |||
940 | ||||
941 | /* Get the GP value. This is an internal function used by some of the | |||
942 | relocation special_function routines on targets which support a GP | |||
943 | register. */ | |||
944 | ||||
945 | bfd_vma | |||
946 | _bfd_get_gp_value (bfd *abfd) | |||
947 | { | |||
948 | if (! abfd) | |||
949 | return 0; | |||
950 | if (abfd->format != bfd_object) | |||
951 | return 0; | |||
952 | ||||
953 | if (abfd->xvec->flavour == bfd_target_ecoff_flavour) | |||
954 | return ecoff_data (abfd)((abfd)->tdata.ecoff_obj_data)->gp; | |||
955 | else if (abfd->xvec->flavour == bfd_target_elf_flavour) | |||
956 | return elf_gp (abfd)(((abfd) -> tdata.elf_obj_data) -> gp); | |||
957 | ||||
958 | return 0; | |||
959 | } | |||
960 | ||||
961 | /* Set the GP value. */ | |||
962 | ||||
963 | void | |||
964 | _bfd_set_gp_value (bfd *abfd, bfd_vma v) | |||
965 | { | |||
966 | if (! abfd) | |||
| ||||
967 | BFD_FAIL ()do { bfd_assert("/usr/src/gnu/usr.bin/binutils-2.17/bfd/bfd.c" ,967); } while (0); | |||
968 | if (abfd->format != bfd_object) | |||
| ||||
969 | return; | |||
970 | ||||
971 | if (abfd->xvec->flavour == bfd_target_ecoff_flavour) | |||
972 | ecoff_data (abfd)((abfd)->tdata.ecoff_obj_data)->gp = v; | |||
973 | else if (abfd->xvec->flavour == bfd_target_elf_flavour) | |||
974 | elf_gp (abfd)(((abfd) -> tdata.elf_obj_data) -> gp) = v; | |||
975 | } | |||
976 | ||||
977 | /* | |||
978 | FUNCTION | |||
979 | bfd_scan_vma | |||
980 | ||||
981 | SYNOPSIS | |||
982 | bfd_vma bfd_scan_vma (const char *string, const char **end, int base); | |||
983 | ||||
984 | DESCRIPTION | |||
985 | Convert, like <<strtoul>>, a numerical expression | |||
986 | @var{string} into a <<bfd_vma>> integer, and return that integer. | |||
987 | (Though without as many bells and whistles as <<strtoul>>.) | |||
988 | The expression is assumed to be unsigned (i.e., positive). | |||
989 | If given a @var{base}, it is used as the base for conversion. | |||
990 | A base of 0 causes the function to interpret the string | |||
991 | in hex if a leading "0x" or "0X" is found, otherwise | |||
992 | in octal if a leading zero is found, otherwise in decimal. | |||
993 | ||||
994 | If the value would overflow, the maximum <<bfd_vma>> value is | |||
995 | returned. | |||
996 | */ | |||
997 | ||||
998 | bfd_vma | |||
999 | bfd_scan_vma (const char *string, const char **end, int base) | |||
1000 | { | |||
1001 | bfd_vma value; | |||
1002 | bfd_vma cutoff; | |||
1003 | unsigned int cutlim; | |||
1004 | int overflow; | |||
1005 | ||||
1006 | /* Let the host do it if possible. */ | |||
1007 | if (sizeof (bfd_vma) <= sizeof (unsigned long)) | |||
1008 | return strtoul (string, (char **) end, base); | |||
1009 | ||||
1010 | #ifdef HAVE_STRTOULL1 | |||
1011 | if (sizeof (bfd_vma) <= sizeof (unsigned long long)) | |||
1012 | return strtoull (string, (char **) end, base); | |||
1013 | #endif | |||
1014 | ||||
1015 | if (base == 0) | |||
1016 | { | |||
1017 | if (string[0] == '0') | |||
1018 | { | |||
1019 | if ((string[1] == 'x') || (string[1] == 'X')) | |||
1020 | base = 16; | |||
1021 | else | |||
1022 | base = 8; | |||
1023 | } | |||
1024 | } | |||
1025 | ||||
1026 | if ((base < 2) || (base > 36)) | |||
1027 | base = 10; | |||
1028 | ||||
1029 | if (base == 16 | |||
1030 | && string[0] == '0' | |||
1031 | && (string[1] == 'x' || string[1] == 'X') | |||
1032 | && ISXDIGIT (string[2])(_sch_istable[(string[2]) & 0xff] & (unsigned short)( _sch_isxdigit))) | |||
1033 | { | |||
1034 | string += 2; | |||
1035 | } | |||
1036 | ||||
1037 | cutoff = (~ (bfd_vma) 0) / (bfd_vma) base; | |||
1038 | cutlim = (~ (bfd_vma) 0) % (bfd_vma) base; | |||
1039 | value = 0; | |||
1040 | overflow = 0; | |||
1041 | while (1) | |||
1042 | { | |||
1043 | unsigned int digit; | |||
1044 | ||||
1045 | digit = *string; | |||
1046 | if (ISDIGIT (digit)(_sch_istable[(digit) & 0xff] & (unsigned short)(_sch_isdigit ))) | |||
1047 | digit = digit - '0'; | |||
1048 | else if (ISALPHA (digit)(_sch_istable[(digit) & 0xff] & (unsigned short)(_sch_isalpha ))) | |||
1049 | digit = TOUPPER (digit)_sch_toupper[(digit) & 0xff] - 'A' + 10; | |||
1050 | else | |||
1051 | break; | |||
1052 | if (digit >= (unsigned int) base) | |||
1053 | break; | |||
1054 | if (value > cutoff || (value == cutoff && digit > cutlim)) | |||
1055 | overflow = 1; | |||
1056 | value = value * base + digit; | |||
1057 | ++string; | |||
1058 | } | |||
1059 | ||||
1060 | if (overflow) | |||
1061 | value = ~ (bfd_vma) 0; | |||
1062 | ||||
1063 | if (end != NULL((void*)0)) | |||
1064 | *end = string; | |||
1065 | ||||
1066 | return value; | |||
1067 | } | |||
1068 | ||||
1069 | /* | |||
1070 | FUNCTION | |||
1071 | bfd_copy_private_header_data | |||
1072 | ||||
1073 | SYNOPSIS | |||
1074 | bfd_boolean bfd_copy_private_header_data (bfd *ibfd, bfd *obfd); | |||
1075 | ||||
1076 | DESCRIPTION | |||
1077 | Copy private BFD header information from the BFD @var{ibfd} to the | |||
1078 | the BFD @var{obfd}. This copies information that may require | |||
1079 | sections to exist, but does not require symbol tables. Return | |||
1080 | <<true>> on success, <<false>> on error. | |||
1081 | Possible error returns are: | |||
1082 | ||||
1083 | o <<bfd_error_no_memory>> - | |||
1084 | Not enough memory exists to create private data for @var{obfd}. | |||
1085 | ||||
1086 | .#define bfd_copy_private_header_data(ibfd, obfd) \ | |||
1087 | . BFD_SEND (obfd, _bfd_copy_private_header_data, \ | |||
1088 | . (ibfd, obfd)) | |||
1089 | ||||
1090 | */ | |||
1091 | ||||
1092 | /* | |||
1093 | FUNCTION | |||
1094 | bfd_copy_private_bfd_data | |||
1095 | ||||
1096 | SYNOPSIS | |||
1097 | bfd_boolean bfd_copy_private_bfd_data (bfd *ibfd, bfd *obfd); | |||
1098 | ||||
1099 | DESCRIPTION | |||
1100 | Copy private BFD information from the BFD @var{ibfd} to the | |||
1101 | the BFD @var{obfd}. Return <<TRUE>> on success, <<FALSE>> on error. | |||
1102 | Possible error returns are: | |||
1103 | ||||
1104 | o <<bfd_error_no_memory>> - | |||
1105 | Not enough memory exists to create private data for @var{obfd}. | |||
1106 | ||||
1107 | .#define bfd_copy_private_bfd_data(ibfd, obfd) \ | |||
1108 | . BFD_SEND (obfd, _bfd_copy_private_bfd_data, \ | |||
1109 | . (ibfd, obfd)) | |||
1110 | ||||
1111 | */ | |||
1112 | ||||
1113 | /* | |||
1114 | FUNCTION | |||
1115 | bfd_merge_private_bfd_data | |||
1116 | ||||
1117 | SYNOPSIS | |||
1118 | bfd_boolean bfd_merge_private_bfd_data (bfd *ibfd, bfd *obfd); | |||
1119 | ||||
1120 | DESCRIPTION | |||
1121 | Merge private BFD information from the BFD @var{ibfd} to the | |||
1122 | the output file BFD @var{obfd} when linking. Return <<TRUE>> | |||
1123 | on success, <<FALSE>> on error. Possible error returns are: | |||
1124 | ||||
1125 | o <<bfd_error_no_memory>> - | |||
1126 | Not enough memory exists to create private data for @var{obfd}. | |||
1127 | ||||
1128 | .#define bfd_merge_private_bfd_data(ibfd, obfd) \ | |||
1129 | . BFD_SEND (obfd, _bfd_merge_private_bfd_data, \ | |||
1130 | . (ibfd, obfd)) | |||
1131 | ||||
1132 | */ | |||
1133 | ||||
1134 | /* | |||
1135 | FUNCTION | |||
1136 | bfd_set_private_flags | |||
1137 | ||||
1138 | SYNOPSIS | |||
1139 | bfd_boolean bfd_set_private_flags (bfd *abfd, flagword flags); | |||
1140 | ||||
1141 | DESCRIPTION | |||
1142 | Set private BFD flag information in the BFD @var{abfd}. | |||
1143 | Return <<TRUE>> on success, <<FALSE>> on error. Possible error | |||
1144 | returns are: | |||
1145 | ||||
1146 | o <<bfd_error_no_memory>> - | |||
1147 | Not enough memory exists to create private data for @var{obfd}. | |||
1148 | ||||
1149 | .#define bfd_set_private_flags(abfd, flags) \ | |||
1150 | . BFD_SEND (abfd, _bfd_set_private_flags, (abfd, flags)) | |||
1151 | ||||
1152 | */ | |||
1153 | ||||
1154 | /* | |||
1155 | FUNCTION | |||
1156 | Other functions | |||
1157 | ||||
1158 | DESCRIPTION | |||
1159 | The following functions exist but have not yet been documented. | |||
1160 | ||||
1161 | .#define bfd_sizeof_headers(abfd, reloc) \ | |||
1162 | . BFD_SEND (abfd, _bfd_sizeof_headers, (abfd, reloc)) | |||
1163 | . | |||
1164 | .#define bfd_find_nearest_line(abfd, sec, syms, off, file, func, line) \ | |||
1165 | . BFD_SEND (abfd, _bfd_find_nearest_line, \ | |||
1166 | . (abfd, sec, syms, off, file, func, line)) | |||
1167 | . | |||
1168 | .#define bfd_find_line(abfd, syms, sym, file, line) \ | |||
1169 | . BFD_SEND (abfd, _bfd_find_line, \ | |||
1170 | . (abfd, syms, sym, file, line)) | |||
1171 | . | |||
1172 | .#define bfd_find_inliner_info(abfd, file, func, line) \ | |||
1173 | . BFD_SEND (abfd, _bfd_find_inliner_info, \ | |||
1174 | . (abfd, file, func, line)) | |||
1175 | . | |||
1176 | .#define bfd_debug_info_start(abfd) \ | |||
1177 | . BFD_SEND (abfd, _bfd_debug_info_start, (abfd)) | |||
1178 | . | |||
1179 | .#define bfd_debug_info_end(abfd) \ | |||
1180 | . BFD_SEND (abfd, _bfd_debug_info_end, (abfd)) | |||
1181 | . | |||
1182 | .#define bfd_debug_info_accumulate(abfd, section) \ | |||
1183 | . BFD_SEND (abfd, _bfd_debug_info_accumulate, (abfd, section)) | |||
1184 | . | |||
1185 | .#define bfd_stat_arch_elt(abfd, stat) \ | |||
1186 | . BFD_SEND (abfd, _bfd_stat_arch_elt,(abfd, stat)) | |||
1187 | . | |||
1188 | .#define bfd_update_armap_timestamp(abfd) \ | |||
1189 | . BFD_SEND (abfd, _bfd_update_armap_timestamp, (abfd)) | |||
1190 | . | |||
1191 | .#define bfd_set_arch_mach(abfd, arch, mach)\ | |||
1192 | . BFD_SEND ( abfd, _bfd_set_arch_mach, (abfd, arch, mach)) | |||
1193 | . | |||
1194 | .#define bfd_relax_section(abfd, section, link_info, again) \ | |||
1195 | . BFD_SEND (abfd, _bfd_relax_section, (abfd, section, link_info, again)) | |||
1196 | . | |||
1197 | .#define bfd_gc_sections(abfd, link_info) \ | |||
1198 | . BFD_SEND (abfd, _bfd_gc_sections, (abfd, link_info)) | |||
1199 | . | |||
1200 | .#define bfd_merge_sections(abfd, link_info) \ | |||
1201 | . BFD_SEND (abfd, _bfd_merge_sections, (abfd, link_info)) | |||
1202 | . | |||
1203 | .#define bfd_is_group_section(abfd, sec) \ | |||
1204 | . BFD_SEND (abfd, _bfd_is_group_section, (abfd, sec)) | |||
1205 | . | |||
1206 | .#define bfd_discard_group(abfd, sec) \ | |||
1207 | . BFD_SEND (abfd, _bfd_discard_group, (abfd, sec)) | |||
1208 | . | |||
1209 | .#define bfd_link_hash_table_create(abfd) \ | |||
1210 | . BFD_SEND (abfd, _bfd_link_hash_table_create, (abfd)) | |||
1211 | . | |||
1212 | .#define bfd_link_hash_table_free(abfd, hash) \ | |||
1213 | . BFD_SEND (abfd, _bfd_link_hash_table_free, (hash)) | |||
1214 | . | |||
1215 | .#define bfd_link_add_symbols(abfd, info) \ | |||
1216 | . BFD_SEND (abfd, _bfd_link_add_symbols, (abfd, info)) | |||
1217 | . | |||
1218 | .#define bfd_link_just_syms(abfd, sec, info) \ | |||
1219 | . BFD_SEND (abfd, _bfd_link_just_syms, (sec, info)) | |||
1220 | . | |||
1221 | .#define bfd_final_link(abfd, info) \ | |||
1222 | . BFD_SEND (abfd, _bfd_final_link, (abfd, info)) | |||
1223 | . | |||
1224 | .#define bfd_free_cached_info(abfd) \ | |||
1225 | . BFD_SEND (abfd, _bfd_free_cached_info, (abfd)) | |||
1226 | . | |||
1227 | .#define bfd_get_dynamic_symtab_upper_bound(abfd) \ | |||
1228 | . BFD_SEND (abfd, _bfd_get_dynamic_symtab_upper_bound, (abfd)) | |||
1229 | . | |||
1230 | .#define bfd_print_private_bfd_data(abfd, file)\ | |||
1231 | . BFD_SEND (abfd, _bfd_print_private_bfd_data, (abfd, file)) | |||
1232 | . | |||
1233 | .#define bfd_canonicalize_dynamic_symtab(abfd, asymbols) \ | |||
1234 | . BFD_SEND (abfd, _bfd_canonicalize_dynamic_symtab, (abfd, asymbols)) | |||
1235 | . | |||
1236 | .#define bfd_get_synthetic_symtab(abfd, count, syms, dyncount, dynsyms, ret) \ | |||
1237 | . BFD_SEND (abfd, _bfd_get_synthetic_symtab, (abfd, count, syms, \ | |||
1238 | . dyncount, dynsyms, ret)) | |||
1239 | . | |||
1240 | .#define bfd_get_dynamic_reloc_upper_bound(abfd) \ | |||
1241 | . BFD_SEND (abfd, _bfd_get_dynamic_reloc_upper_bound, (abfd)) | |||
1242 | . | |||
1243 | .#define bfd_canonicalize_dynamic_reloc(abfd, arels, asyms) \ | |||
1244 | . BFD_SEND (abfd, _bfd_canonicalize_dynamic_reloc, (abfd, arels, asyms)) | |||
1245 | . | |||
1246 | .extern bfd_byte *bfd_get_relocated_section_contents | |||
1247 | . (bfd *, struct bfd_link_info *, struct bfd_link_order *, bfd_byte *, | |||
1248 | . bfd_boolean, asymbol **); | |||
1249 | . | |||
1250 | ||||
1251 | */ | |||
1252 | ||||
1253 | bfd_byte * | |||
1254 | bfd_get_relocated_section_contents (bfd *abfd, | |||
1255 | struct bfd_link_info *link_info, | |||
1256 | struct bfd_link_order *link_order, | |||
1257 | bfd_byte *data, | |||
1258 | bfd_boolean relocatable, | |||
1259 | asymbol **symbols) | |||
1260 | { | |||
1261 | bfd *abfd2; | |||
1262 | bfd_byte *(*fn) (bfd *, struct bfd_link_info *, struct bfd_link_order *, | |||
1263 | bfd_byte *, bfd_boolean, asymbol **); | |||
1264 | ||||
1265 | if (link_order->type == bfd_indirect_link_order) | |||
1266 | { | |||
1267 | abfd2 = link_order->u.indirect.section->owner; | |||
1268 | if (abfd2 == NULL((void*)0)) | |||
1269 | abfd2 = abfd; | |||
1270 | } | |||
1271 | else | |||
1272 | abfd2 = abfd; | |||
1273 | ||||
1274 | fn = abfd2->xvec->_bfd_get_relocated_section_contents; | |||
1275 | ||||
1276 | return (*fn) (abfd, link_info, link_order, data, relocatable, symbols); | |||
1277 | } | |||
1278 | ||||
1279 | /* Record information about an ELF program header. */ | |||
1280 | ||||
1281 | bfd_boolean | |||
1282 | bfd_record_phdr (bfd *abfd, | |||
1283 | unsigned long type, | |||
1284 | bfd_boolean flags_valid, | |||
1285 | flagword flags, | |||
1286 | bfd_boolean at_valid, | |||
1287 | bfd_vma at, | |||
1288 | bfd_boolean includes_filehdr, | |||
1289 | bfd_boolean includes_phdrs, | |||
1290 | unsigned int count, | |||
1291 | asection **secs) | |||
1292 | { | |||
1293 | struct elf_segment_map *m, **pm; | |||
1294 | bfd_size_type amt; | |||
1295 | ||||
1296 | if (bfd_get_flavour (abfd)((abfd)->xvec->flavour) != bfd_target_elf_flavour) | |||
1297 | return TRUE1; | |||
1298 | ||||
1299 | amt = sizeof (struct elf_segment_map); | |||
1300 | amt += ((bfd_size_type) count - 1) * sizeof (asection *); | |||
1301 | m = bfd_alloc (abfd, amt); | |||
1302 | if (m == NULL((void*)0)) | |||
1303 | return FALSE0; | |||
1304 | ||||
1305 | m->next = NULL((void*)0); | |||
1306 | m->p_type = type; | |||
1307 | m->p_flags = flags; | |||
1308 | m->p_paddr = at; | |||
1309 | m->p_flags_valid = flags_valid; | |||
1310 | m->p_paddr_valid = at_valid; | |||
1311 | m->includes_filehdr = includes_filehdr; | |||
1312 | m->includes_phdrs = includes_phdrs; | |||
1313 | m->count = count; | |||
1314 | if (count > 0) | |||
1315 | memcpy (m->sections, secs, count * sizeof (asection *)); | |||
1316 | ||||
1317 | for (pm = &elf_tdata (abfd)((abfd) -> tdata.elf_obj_data)->segment_map; *pm != NULL((void*)0); pm = &(*pm)->next) | |||
1318 | ; | |||
1319 | *pm = m; | |||
1320 | ||||
1321 | return TRUE1; | |||
1322 | } | |||
1323 | ||||
1324 | void | |||
1325 | bfd_sprintf_vma (bfd *abfd, char *buf, bfd_vma value) | |||
1326 | { | |||
1327 | if (bfd_get_flavour (abfd)((abfd)->xvec->flavour) == bfd_target_elf_flavour) | |||
1328 | get_elf_backend_data (abfd)((const struct elf_backend_data *) (abfd)->xvec->backend_data )->elf_backend_sprintf_vma (abfd, buf, value); | |||
1329 | else | |||
1330 | sprintf_vma (buf, value)sprintf (buf, "%016lx", value); | |||
1331 | } | |||
1332 | ||||
1333 | void | |||
1334 | bfd_fprintf_vma (bfd *abfd, void *stream, bfd_vma value) | |||
1335 | { | |||
1336 | if (bfd_get_flavour (abfd)((abfd)->xvec->flavour) == bfd_target_elf_flavour) | |||
1337 | get_elf_backend_data (abfd)((const struct elf_backend_data *) (abfd)->xvec->backend_data )->elf_backend_fprintf_vma (abfd, stream, value); | |||
1338 | else | |||
1339 | fprintf_vma ((FILE *) stream, value)fprintf ((FILE *) stream, "%016lx", value); | |||
1340 | } | |||
1341 | ||||
1342 | /* | |||
1343 | FUNCTION | |||
1344 | bfd_alt_mach_code | |||
1345 | ||||
1346 | SYNOPSIS | |||
1347 | bfd_boolean bfd_alt_mach_code (bfd *abfd, int alternative); | |||
1348 | ||||
1349 | DESCRIPTION | |||
1350 | ||||
1351 | When more than one machine code number is available for the | |||
1352 | same machine type, this function can be used to switch between | |||
1353 | the preferred one (alternative == 0) and any others. Currently, | |||
1354 | only ELF supports this feature, with up to two alternate | |||
1355 | machine codes. | |||
1356 | */ | |||
1357 | ||||
1358 | bfd_boolean | |||
1359 | bfd_alt_mach_code (bfd *abfd, int alternative) | |||
1360 | { | |||
1361 | if (bfd_get_flavour (abfd)((abfd)->xvec->flavour) == bfd_target_elf_flavour) | |||
1362 | { | |||
1363 | int code; | |||
1364 | ||||
1365 | switch (alternative) | |||
1366 | { | |||
1367 | case 0: | |||
1368 | code = get_elf_backend_data (abfd)((const struct elf_backend_data *) (abfd)->xvec->backend_data )->elf_machine_code; | |||
1369 | break; | |||
1370 | ||||
1371 | case 1: | |||
1372 | code = get_elf_backend_data (abfd)((const struct elf_backend_data *) (abfd)->xvec->backend_data )->elf_machine_alt1; | |||
1373 | if (code == 0) | |||
1374 | return FALSE0; | |||
1375 | break; | |||
1376 | ||||
1377 | case 2: | |||
1378 | code = get_elf_backend_data (abfd)((const struct elf_backend_data *) (abfd)->xvec->backend_data )->elf_machine_alt2; | |||
1379 | if (code == 0) | |||
1380 | return FALSE0; | |||
1381 | break; | |||
1382 | ||||
1383 | default: | |||
1384 | return FALSE0; | |||
1385 | } | |||
1386 | ||||
1387 | elf_elfheader (abfd)(((abfd) -> tdata.elf_obj_data) -> elf_header)->e_machine = code; | |||
1388 | ||||
1389 | return TRUE1; | |||
1390 | } | |||
1391 | ||||
1392 | return FALSE0; | |||
1393 | } | |||
1394 | ||||
1395 | /* | |||
1396 | CODE_FRAGMENT | |||
1397 | ||||
1398 | .struct bfd_preserve | |||
1399 | .{ | |||
1400 | . void *marker; | |||
1401 | . void *tdata; | |||
1402 | . flagword flags; | |||
1403 | . const struct bfd_arch_info *arch_info; | |||
1404 | . struct bfd_section *sections; | |||
1405 | . struct bfd_section *section_last; | |||
1406 | . unsigned int section_count; | |||
1407 | . struct bfd_hash_table section_htab; | |||
1408 | .}; | |||
1409 | . | |||
1410 | */ | |||
1411 | ||||
1412 | /* | |||
1413 | FUNCTION | |||
1414 | bfd_preserve_save | |||
1415 | ||||
1416 | SYNOPSIS | |||
1417 | bfd_boolean bfd_preserve_save (bfd *, struct bfd_preserve *); | |||
1418 | ||||
1419 | DESCRIPTION | |||
1420 | When testing an object for compatibility with a particular | |||
1421 | target back-end, the back-end object_p function needs to set | |||
1422 | up certain fields in the bfd on successfully recognizing the | |||
1423 | object. This typically happens in a piecemeal fashion, with | |||
1424 | failures possible at many points. On failure, the bfd is | |||
1425 | supposed to be restored to its initial state, which is | |||
1426 | virtually impossible. However, restoring a subset of the bfd | |||
1427 | state works in practice. This function stores the subset and | |||
1428 | reinitializes the bfd. | |||
1429 | ||||
1430 | */ | |||
1431 | ||||
1432 | bfd_boolean | |||
1433 | bfd_preserve_save (bfd *abfd, struct bfd_preserve *preserve) | |||
1434 | { | |||
1435 | preserve->tdata = abfd->tdata.any; | |||
1436 | preserve->arch_info = abfd->arch_info; | |||
1437 | preserve->flags = abfd->flags; | |||
1438 | preserve->sections = abfd->sections; | |||
1439 | preserve->section_last = abfd->section_last; | |||
1440 | preserve->section_count = abfd->section_count; | |||
1441 | preserve->section_htab = abfd->section_htab; | |||
1442 | ||||
1443 | if (! bfd_hash_table_init (&abfd->section_htab, bfd_section_hash_newfunc, | |||
1444 | sizeof (struct section_hash_entry))) | |||
1445 | return FALSE0; | |||
1446 | ||||
1447 | abfd->tdata.any = NULL((void*)0); | |||
1448 | abfd->arch_info = &bfd_default_arch_struct; | |||
1449 | abfd->flags &= BFD_IN_MEMORY0x800; | |||
1450 | abfd->sections = NULL((void*)0); | |||
1451 | abfd->section_last = NULL((void*)0); | |||
1452 | abfd->section_count = 0; | |||
1453 | ||||
1454 | return TRUE1; | |||
1455 | } | |||
1456 | ||||
1457 | /* | |||
1458 | FUNCTION | |||
1459 | bfd_preserve_restore | |||
1460 | ||||
1461 | SYNOPSIS | |||
1462 | void bfd_preserve_restore (bfd *, struct bfd_preserve *); | |||
1463 | ||||
1464 | DESCRIPTION | |||
1465 | This function restores bfd state saved by bfd_preserve_save. | |||
1466 | If MARKER is non-NULL in struct bfd_preserve then that block | |||
1467 | and all subsequently bfd_alloc'd memory is freed. | |||
1468 | ||||
1469 | */ | |||
1470 | ||||
1471 | void | |||
1472 | bfd_preserve_restore (bfd *abfd, struct bfd_preserve *preserve) | |||
1473 | { | |||
1474 | bfd_hash_table_free (&abfd->section_htab); | |||
1475 | ||||
1476 | abfd->tdata.any = preserve->tdata; | |||
1477 | abfd->arch_info = preserve->arch_info; | |||
1478 | abfd->flags = preserve->flags; | |||
1479 | abfd->section_htab = preserve->section_htab; | |||
1480 | abfd->sections = preserve->sections; | |||
1481 | abfd->section_last = preserve->section_last; | |||
1482 | abfd->section_count = preserve->section_count; | |||
1483 | ||||
1484 | /* bfd_release frees all memory more recently bfd_alloc'd than | |||
1485 | its arg, as well as its arg. */ | |||
1486 | if (preserve->marker != NULL((void*)0)) | |||
1487 | { | |||
1488 | bfd_release (abfd, preserve->marker); | |||
1489 | preserve->marker = NULL((void*)0); | |||
1490 | } | |||
1491 | } | |||
1492 | ||||
1493 | /* | |||
1494 | FUNCTION | |||
1495 | bfd_preserve_finish | |||
1496 | ||||
1497 | SYNOPSIS | |||
1498 | void bfd_preserve_finish (bfd *, struct bfd_preserve *); | |||
1499 | ||||
1500 | DESCRIPTION | |||
1501 | This function should be called when the bfd state saved by | |||
1502 | bfd_preserve_save is no longer needed. ie. when the back-end | |||
1503 | object_p function returns with success. | |||
1504 | ||||
1505 | */ | |||
1506 | ||||
1507 | void | |||
1508 | bfd_preserve_finish (bfd *abfd ATTRIBUTE_UNUSED__attribute__ ((__unused__)), struct bfd_preserve *preserve) | |||
1509 | { | |||
1510 | /* It would be nice to be able to free more memory here, eg. old | |||
1511 | tdata, but that's not possible since these blocks are sitting | |||
1512 | inside bfd_alloc'd memory. The section hash is on a separate | |||
1513 | objalloc. */ | |||
1514 | bfd_hash_table_free (&preserve->section_htab); | |||
1515 | } |